Door lock



Oct. 7, 1930. F. J. VAN MVDOOREN 1,777,776

DOOR LOCK Filed Oct. 21, 1927 3 Sheets-Sheet l Oct. 7, 1930.

F. J. VAN .DOOREN DOOR LOCK Filed Oct. 21, 1927 3 Sheets-Sheet 2 Oct. 7,1930. F. J. VAN- DOOREN 1,777,776

oooa LOCK Filed 001:. 21, 1927' '5 Sheets-Sheet s 7a arez 'yg,

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- I aktomg 30 panying drawings, in which Patented Oct. 7,:1930

Y U T STAT S PAT ToI-" I E FRANK J. VAN noonnnbn oA nnNn, GAL-reclaim;nssIGNoR brown-FIFTH TO 7 CHESTER-1A. eossn'rr, on sANLEANnno,CALIFORNIA 1 7 77 noon Look A l antsiiieulotober2i,- 1927. SeriaINo.227339.

My invention'relates' to combined latch and lock particularlydesigned-for usecon outside doors, l

p An object of the invention is to provideai' 7 look oftheclassdescribed which maybe locked o -from theinner' sidethereof by anduponan appropriate manipulation of the" bolt-withdrawingmember at saidside wherebyga normally operative thumb latch at the outer sideof thedoorinay be rendered inoperative; a 1 7 7 Another object oftheinventionis to pro videa lock of the character described having key-controlledmeans operative from the outer side of the door for restoring the operativene'ss 0f the bolt-withdrawing member at said side. 7 r 7 A furtherobject of thejinven-tion is to profvide a lock otthe character describedin which the key-controlled means may be dircctly utilized forwithdrawing the bolt.

Agstill further object of the invention is to provide an improved andsimplified structure" fora lock of the type described. 7 The inventionpossesses other objects and featuresof advantage, someof which, with theforegoing, will be set forthin the following description'of a preferredform of the invention which is illustrated in'the accoin Figure 1 is aplan view of the lock in nounted relationto a door and its'associatedFigure 2 is a view taken'on the line 2-2 in Figure'l, and drawn at areduced scale, the

doorjbeing in section.

Figure 3isa plan view ofa key-controlled lock portion therein .7. 7 77Figure 4 is a fragmentary outside face 7 view of the lock.

r i Figure 5 is aside sectional View" through the lock with thepartsthereof normally disposed. r

Figure 6 a the lock withthe bolt iii'withdraw'n position as by a forceapplied directly thereagainst.

fFlg'llIG witha key operatively disposed is asidesectional View of thestructure showing the I relation 'of. the parts is a side sectional viewthrough '7 ative frorn-the innerjside of the door.7{ Figure 8 is afragmentaryside sectional view ofthe lock showing the relation of theparts when the bolt iswithdrawn by means when the boltis withdrawnbymeansoperi I i of the door.

structure showing the appropriate parts disposed for preventing'the'withdrawal er a the bolt bythe thunib latch. 7

Figure 101is a sectional VlGW' taken line -"'1O -10in' Figure 5 7 7 r nFigure 11 is a sectional view'taken onpthe line11-11 in Figure 6. l

of a thumb latch operablefrom the outer side Figure 9 is a sidesectional view ofthe lock ba he Figureslfland 71's ares'ide and endviewst 77 1 portions of the lock casing.

Figures 14 and 15: are side and end views of a movable latchcylinderforrning partof the lock structure. 7 7 7i Figures 16 and 17 areside andend views of a latch cylinder portion providing a mountingforthelatch-bolt'. 1 7 v Figures 18 and 19 are 'sideiandjendviews of aportion ofthe latch structure.7 3 Figures 2O and 21 are side of thelatch bolt of the lock. 77 7 Figures 22'and 23; are side and end viewsofa knob spindle for operating the lock.

Figures 24 and 25 are views of a lever forming partof theoperatingstructure. 7 i

a a and end views Y Figures 26 and 27 are face and edge views 1 of anedge plate formingplartiofthe lockcas 7 111 7 7 7 a r r i l3riefiy, thelock 28 of my invention comprises a'casing29 arranged to be mounted intheedge portion- 31 of a door 32, and a movaa ble latch member in theformof a hollowcyl inder 33 reciprocable in the casing and normallypositioned to dispose a latch bolt 34 carried thereby in extendedposition. .A spindle 36 isdisposed through the casingiand latchcylinder, said r from the innerside ofithe lock, 1 the withdrawaliofthelatch cylinder orlocking it against withdrawal as.;may bedesired,whilela'thninb latch 37 is provided for effecting the withdrawal ofthelatch cylinder from thejouter side of'the door, eziceptwhen the spindleis disposed in its 1 locking: position spindle beingJoperableT foreffecting 7 to the latch cylinder.

Key-operated means are also provided for effecting a withdrawal of thelatch plate, such means comprising a key-receiving barrel 38 arranged tobe freed for rotation about its longitudinal axis only by and upon theinsertion of a proper key 39 therein and operable upon the rotationthereof to displace the spindle from its locking position and to effecta withdrawal of the latch cylinder. The latch cylinder. is arranged tobe resiliently urged to maintain its normal forward position by means ofa spring 41 operatively interposed between it and the spindle 36.

The latch bolt 34 comprises a; head portion 42 of rectangular sectionhaving a beveled outer face 43, and a reduced stem portion 44 havingradial flange 46 provided at the free end thereof. Fixed in the outerend of the latch cylinder 33 is a cylindrical plug'47 having an axialbore provided therein. for the sliding reception of the bolt stem 44.The plug 47 is preferably removably fixed to the latch cylinder, and ashere shown the cylindrical plug face is provided with an annular groove48 in which oneor more bosses 49 upset inwardly from the bore of thelatch cylinder are arranged to engage. To provide for the engagement ofthe bosses 49 in the groove 48, axially directed channels 51 areprovided in the plug surface to extend from the inner end thereof to thegroove 48 and arranged to simultaneously receive the bosses 49 wherebythe plug may be inserted in the end of the latch cylinder and thereafterbe rotated to dispose the bosses in front of the rear groove edge.Preferably, and .as shown, the plug 47 is arranged to beheld in thelatter relation to the latch cylinder by means of a pin 59. extendingthrough the latch cylinder into the plug and having the head. thereofcountersunkin the latch cylinder. In thisv manner, the plug 47 is heldin releasably fixed. relation To provide for the disposal of the boltportion 44 in the bore of the plug 47, the portion 44 is preferablydetachably fixed to the bolt head 42. As herewith particularlydisclosed. the bolt head is provided at its inner side with a socket 53for the reception of the cooperating end of the stem 44, and the stemand head are fixed together by means of a pin 54 engagedtransversely-through the stem and head. The space between the boltflange 46 and the head 42:is arranged to exceed the axial length of theplug 47 by an amount substantially equaling the desired reach orextension of the bolt from the lock and into the bolt socket 54providedin the door iamb 56,. whereby, with the latch cylinder in its normalposition, a, retractive movement of the bolt head for disposition withinthe loo]: is permitted, such relation being particularly shown in Figure6. T i

. The casing 29 it will nowbe noted, comprises a tubular shell 57 havingthe bore thereof provide the guideway for the movable latch-plate 33 andan edge plate 58 fixed transversely across an end of the shell 57 andprovided at points thereof lying outwardly of the shell 57 withscrewholes 59 whereby it may be fixed to and against the door edge. Theplate 58 and shell 57 are preferably detachably associated, and as hereshown, the former is provided with a rearwardly extending portion 61arranged fora sliding engagement in the bore of the shell 57 at theextreme end thereof. hen, as is here shown, the shell 57 is cylindrical,the

portion 61 would be of like form and a device fixing the plug 47 such asthat employed in 7 be employed in in. the latch cylinder 33 may themanner shown. It is noted, however, that in this case no pin is neededfor preventing the relative rotation of the shell and plate, as thesemembers are both held against any rotative movement when the lock ismounted on a door. The plate 58 at the portion 61 thereof is perforatedtherethrough to slidably receive the bolt head 42 and is of suchthickness that'the bolt head may be entirely disposed in the perforationthereof, it now being noted that the inner face of the portion 61provides a stop to limit the outward movement of the latch cylinder 33.

The spring 41 does not directly engage either the latchcylinder 33 orthe spindle 36 but is engaged, rather, between the flanged inner end ofthe latch bolt 34: and a member 62 which engages the spindle. The member62 is generally cupshaped, is longitudinally slidable in the bore of thelatch cylinder and is provided with a spherically curved outer endsurface 63 for engagement with the spindle 36.. The cavity 64 of themember 62, it is noted, is arranged to receive a major portion of thespring 41 and the bore thereof is preferably such as will freely receivethe flange 46 of the latch bolt whereby under certain conditions to behereinafter brought out, the annular forward edge 66 of the member 62may directly engage the inner face of the plug 47. lVith the structureprovided, it will now be obvious that the spring 41 will normallyfunction to forcibly and yieldingly hold the latch bolt in its extendedposition with the flange 46 thereof engaging the in; nor side of theplug 47 as a stop as is shown in Figure 5, and that an inwarddisplacement of the bolt is permitted as when the bevelled face 43 ofthe bolt head engages a jamb plate 67' at the socket 54, the door isclosed, such displacement of the bolt being indicated in Figure 6.

The thumb latch 37; it will now be noted, comprises a lever 68 disposedthrough and fulcrumed on an escutcheon plate 69 fixed on the outer face71 of the door opposite the lock mechanism. Fixed on the door surfacebelow. the thumb latch is a handle 72 arranged to provide a grip for thefingers for bearing at its upper side. Pivotally mounted on a pin 73extending horizontally and trans versely of the casing portion 57adjacent the lower side and inner end thereof, is a bellcrank lever 7 4having an arm 76 thereof disposed withinnthe area of the latch cylinder33 between the member 62 and the innerend wall 77of the latch cylinder,it being noted that the arm 7 6is normally; disposed generallyvertically and is arranged to maintain an engagement with thewall 77 atall times.

a "The otherarm 78 thereof of the lever 74, de-

pends forwardly ofthe pivotalaxis into the path ofmovem'ent of-the innerend'of the latch lever 68,the latter having adjustably mounted on theinner side thereof a member" 79 providing a convex surface 80 againstwhich the end of thel'ever arm 78 is arranged to slidably engage as thelatch lever is rocked. In this manner,a1roperative r0cking of the latchlever68 is arranged to rock the bell-crank lever 74, Fig.8, to forciblyen-p gage the arm 76 of the latter against the latchcylinder end wall 77andso effecta retraction of thelatch cylinder andbolt against theresistance of the spring a1. To permit the retraction of the latchcylinder inthe manner described, the perforation 79 of the latchcylinder through which the pin extends is so shaped that a reciprocationofthe latch cylinderequal to thenecessary movement of the latch boltbetween its fully extended; and

fully retracted positions is permitted. The

relationof the parts when the bolt is retracted by means of thethumb-latch is particularly shown injFigure 8.

1 its axis horizontal and ex'tending transverse shaped as to permit theThe spindle 36, ittwill now be noted, is

journall'ed in the casing'shell"portion-57 with ly of and below theaxis-of the latch cylinder.

Extending. radially from the spindle is an arm 81, which arm is arrangedto be normally disposed upwardly from the spindle axis and in engagementwith and between the member 62 and the lever arm 76; In this manner arotation of the spindle to force the arm 81backwardly and against thearm 76 movement of the latch cylinder independently of the dispositionof the thumb latch lever, it being noted that the perforation 79 is so apassage of the spindle 36 through the latch cylinder and the necessarymovement of the latch cylinder with respect to said spindle. Therelation of Yet the parts whenthe latch bolt is withdrawn bymeans of thespindle is shown in Figure 7. It will now be clear that a withdrawal ofi the latch bolt may normally be'efi'ected either] i 1 throughappropriately rotating the spindle by means of a knob82 carried atan endthereof which protrudes from the inner side of the outer; side of thedoor.

door, or by means ofthe thumb latch 37 at-the v a When, however,it isdesired tolock the door against a retraction ,of the latch cylinderbymeans of the thumb the spring alto dispose the edge '66 of the'meinber 62 adjacent the inner faceof the plug 17. Preferably, and asherelshown, the arm 81 is arranged. tobe passedthrougha. dead-centerfpositionwith respect to the member 62whereby it will stay in a setposi-r tion against the'rnemberwhen the torque "on the spindle isthereafter relieved, it" now be ing noted. thatthe convexity 0f thesurface 63 is providedlto' assist in maintainingnthe arm 81 in suchsetrposition. With the arm '1 81 set as "described, the engagement ofthe. edge 66 with the plug 47 functionsftorprevent thewithdrawinglmovementiof the latch cylinder which is normallypermitted,:so that thethumb latch isrenderedinoperative for opening thedoor. It will thus be clear that in order to preventanopening of thedoor from the outsideby means of the thumb latch, it

is merely necessaryto rotate the spindle in a direction opposite from adoor-opening rotation and through an angleapproizimating ninety degreesto set the member 62 as-a stop against a retractionflof thelatchcylinder and bolt by "means of the thumb latch,

such setting of the member 62 beingpartic ularly illustrated in "Figure9 x a H "Since the present ;lock is particularly designed 'for'use ontrolled means are provided for eifectinga re mounted on the *escutcheonplate 69 Withthe axis thereof in substantial alignment with that of thespindle 36., a A radial: arm 82'is provided on the inner end oi the'barrel 38,

while extending outwardly from theoppojse dspindle end in the pathof,movement of the; n

31 1 82 is a projection 83 of the spindlewhich is eccentricallyofi'setifrom they axistof'theg it latter. As herewith;particularlvshown,the

projection 83 is providedadjaoent the: outer" i edge of an integralanddisclike end portion 84ofthe spindle. 'Itwill now bejiioted thatwiththe key 39 disposedin thebarrel" 38 for releasing the same, anappropriate rotation. of the barrel is arranged to so engage the arm 82of thebarrel with the projection '83. of the spindle that the spindlewill be rotatedto displace it from its latch looking to its normal 7position, after which a continued rotation of the barrel 'byxneansof thekey will act cylinder for movement through the spindle to effect awithdrawal of the latch cylinder and bolt as by the opera-- tion ofthe.- spindle by means of the knob. Since the first movement of thekey-controlled barrel restores the spindle to its normal posit-ion, thethumb latch may thereafter be used instead of the key: for Withdrawingthe bolt. In this manner,- akey-controlled means is provided which isoperative both to release the latch cylinder and to effect a withdrawalthereof.

I claim:

1. In a. lock, av movable latch cylinder, a bolt normally projectedcarried by said latch relative thereto, means. engaging the boltoperative to resiliently urge said latch cylinder to maintain a positionto dispose saidbolt in extended relation from the; lock, a thumb latchoperablefrom oneside of'the lock to effect a retraction otsaid latchcylindereand bolt, and a knob spindleoperable from the other side. ofsaid lock to: effect a retraction of said latch cylinder andbolt.

2'. In a lock, anormally projected'movable latch member, abolt carriedthereby, a lever operableagainst said member for effecting a retractionthereof, a thumb latch operative against said lever" for" effecting saidretraction, and a knob s 9indle'operative when rotated in one directionfor effecting'said retraction of the member and; when rotated in anopposite direction to render said thumb.

latch inoperative to retract the latch member.

In a:loek,.a normally projected movable latch member, a bolt carriedthereby, a lever operable against said member for effecting a retractionthereof, a thumb latch operative against said leverfor effectingsaidretraction, and a knob spindle operative when rotatablydisplacedinonedirection to rock said leverfor effecting the retractionof the member-end when rotatably displaced in an opposite direction tolock said member against retraction by said lever.

4. In a lock, a normally projected movable latch member,abolt carriedthereby, a lever operable against said member effecting a retractionthereof, a thumb latch operative against said lever for effecting saidretraction thereof, a knob spindle operative when rotatably displacedfrom its normal position- 1n one dlrection to rock said lever foreffect-.

ing the retraction of the member and when rotatably displaced inanopposite direction' to become set to lock said member againstretraction, and key-controlled means operative to restore said spindleto its normal position.

5*. In a lock,.a normally: projected latch member, a bolt carriedthereby, a knob spindle operative from one side of said lock foreffecting a retraction of said member and key-controlled means operativefrom the other side of said lock for operating said spindle to retractsaid member.

6. In a lock, a normally projected latch member, a bolt carried thereby,a knob spindle extending from a side of the lock and operative upon arotation thereof in one direction for effecting a retraction of saidmemher and upon a rotation thereof in another direction to become set astop to lock said member against retraction, and key-controlled meansoperative from the other side of said lock for displacing said spindlefrom its set position to a position for retraction of said member.

7 In a lock, a normally projected movable latch member, bolt carriedthereby, a lever operable against said. member for effectingarretraction thereof, a thumb latch operative against said lever foreffecting said retraction thereof, a spindle having an arm operativewhen rotatably displaced from its normal position in one direction torock said lever for retracting said member and when rotatably displacedinan opposite direction to be disposed to lock said member againstretraction, means automatically operative to yieldingly retain said armin said locking position, and key-controlled means operative againstsaid spindle to rotate the same for releasing said arm and effecting theretraction of said member.

8. In a look, amovable latch member, a normally projectedbolt carried bysaid latch member for movement relative thereto, means engaging the boltto resiliently urge said member to maintain a position to dispose saidbolt in extended relation from the lock, lever means operable from oneside of the lock to effect a retraction of said latch member and bolt,and a knob spindle operable fromthe other side of said lock to effect aretraction of said latch member and bolt.

In testimony whereof, I affix mv signature;

FRANK J. VAN D OOREN.

